Tax residency rules, audits, and the severance record (2026)
2026.1 Edition · Revised 2026-07-25 · DomusDay Research
Moving out of Missouri is easy. Stopping Missouri taxes is a different act, and it happens on paper: Missouri keeps treating you as a resident until the record shows otherwise.
On the burden of showing otherwise: The departure exception is conjunctive — each of its three elements has to appear in the year's record, and the individual asserting nonresident status supplies them on Form MO-NRI.
Two tests decide it. Cross 183 days with a Missouri abode still available and you are taxed as a resident regardless of where you claim to live — and see day-counting rules. Or keep the day count clean but leave the life-pattern evidence pointing at Missouri, and domicile does the same work. Everything on this page exists to answer one question: if DOR asks, does your record hold?
Section 143.101 keeps a Missouri domiciliary a resident unless three things hold at once: no permanent place of abode kept in Missouri, a permanent place of abode kept elsewhere, and no more than 30 days spent in the state during the year. Two out of three leaves resident status in place.
Source ↗From tax year 2025 an individual subtracts 100% of capital gains reported for federal purposes on Form MO-A — short-term and long-term. The corporate version waits until the tax year after the top individual rate reaches 4.5% or lower, which has not happened.
Source ↗The 1% earnings tax reaches compensation earned by nonresidents of the city for work done or services performed in the city. Section 92.111 bars any other Missouri city from adopting one after December 31, 2011, leaving these two constitutional charter cities with periodic voter renewal.
Source ↗This is the test with a number in it, and the number is what an auditor can verify line by line. Keep any Missouri dwelling suitable for year-round use and spend more than 183 days in the state, and Missouri taxes all of your income — domicile arguments never enter into it. See day-counting rules: a morning meeting, a connection through the city with a dinner on the ground, a single evening — each is a full day against the threshold.
One statutory sentence carries both prongs. For arrivals the line is 183 days plus a Missouri abode. For departures the line is 30 days, and it applies only where the Missouri abode is gone and an abode exists elsewhere — a domiciliary who keeps a Missouri home remains a Missouri resident on the department's reading of §143.101 whatever the day count.
A permanent place of abode in Missouri. An individual who is not domiciled in Missouri but maintains one and spends more than 183 days of the taxable year in the state is a resident by statute. The same abode concept runs the other way for departures: a Missouri domiciliary is a resident unless all three conditions hold — no permanent place of abode maintained in Missouri, a permanent place of abode maintained elsewhere, and no more than 30 days of the taxable year spent in the state.
Selling the apartment is not the test, and neither is the new driver's license. Missouri presumes an established domicile continues until it is shown to have changed — section 143.101 defines residence in terms of domicile without defining domicile itself; a Missouri domiciliary remains a resident until the three-part departure exception is satisfied in full. On the burden: The departure exception is conjunctive — each of its three elements has to appear in the year's record, and the individual asserting nonresident status supplies them on Form MO-NRI. Examiners weigh 3 primary factors — whether a permanent place of abode is kept in missouri, a permanent place of abode maintained elsewhere, days spent in missouri — and they weigh what you did, not what you intended. The pattern of an actual life somewhere else is the evidence; everything else is secondary.
A clean exit does not end every Missouri claim. These rules keep taxing specific situations after the move — each one is a way the state stays in your return.
AffectsLeavers who keep Missouri workdays, a Missouri business interest, or Missouri real estate.
AffectsMovers who lived or worked in Kansas City or St. Louis and keep performing work inside the city limits after leaving.
AffectsAnyone who moves out but keeps a Missouri house, condo, or farm available for their own use, and anyone whose visits back run past 30 days in a year.
Missouri Department of Revenue (DOR) runs a low-intensity residency program. The department publishes no residency-specific audit program, guidelines, or statistics; residency questions surface through ordinary individual income tax examination and the Form MO-NRI income percentage. An examination is not an argument about intentions — it is a request for documents, and the request looks like this:
Every item on that list either exists in your records from the year of the move, or it does not. That is the whole game — and why the severance record below is the section that matters most.
An audit years from now is answered with documents generated in the months around the move. This is that inventory — grouped the way examiners think about a life, each item paired with the evidence it leaves behind.
Missouri's departure test is arithmetic in an unusual way: the number that matters for a domiciliary is 30, not 183, and it only comes into play once the Missouri abode is gone and an abode exists elsewhere. A retained Missouri house holds resident status by itself under §143.101. The change year is filed on MO-1040 with MO-NRI stating the residency dates, and capital gains realized while a Missouri resident are subtracted in full from tax year 2025 forward.
A Missouri driver license application requires proof of a Missouri residential address; obtaining a license in the new state and surrendering the Missouri one creates the matching dated record on the departure side.
Source ↗Missouri titles and registrations run from residency; retitling and registering vehicles in the new state generates records there and closes the Missouri ones.
Source ↗Missouri voter registration requires Missouri residency; registering in the new state supersedes the Missouri record and is dated by the local election authority.
Source ↗The first element of the statutory departure exception is that no permanent place of abode is maintained in Missouri — so what happened to the Missouri home, and when, sits at the center of the record.
Source ↗The second element requires a permanent place of abode maintained elsewhere; the deed or lease in the new state is what establishes it.
Source ↗Financial relationships moved to the new state corroborate that the abode maintained elsewhere is the one actually lived in.
Where work is performed drives the Missouri income percentage afterward: wages for work performed in Missouri stay Missouri-source on Form MO-NRI.
Source ↗Where a Kansas City or St. Louis earnings tax applied, the split between city and non-city workdays after the move determines what remains within the tax for a nonresident.
Source ↗Physicians, dentists, and advisers engaged in the new state generate dated, located records that corroborate the abode maintained there.
Memberships, congregations, and civic involvement relocated out of Missouri are dated evidence about where daily life sits.
Where vehicles, household goods, and significant possessions went corroborates whether a Missouri abode was truly given up.
The third element is a count: no more than 30 days in the aggregate in Missouri for the taxable year. Day records for the departure year are read against that number, not against 183.
Source ↗The change year is filed on Form MO-1040 with Form MO-NRI, which states the residency dates and computes the Missouri income percentage; a part-year resident may instead use Form MO-CR, but not both.
Source ↗Where the Kansas City or St. Louis earnings tax applied, the change year carries a city filing allocating city and non-city earnings for the year.
Source ↗Every rule on this page traces to one of these. When a blog and a statute disagree, the statute wins — start here.
How these are chosen, what the automated gates catch, and what this site deliberately does not do: how these guides are made →
The year of the move is filed on MO-NRI, with income split between the resident and nonresident periods — and that return is itself evidence: it states your change date on a signed document. Kansas City and St. Louis earnings tax withholding runs separately from state withholding and follows where work is performed, not where the employee lives.
Thirty, in the aggregate, and only if the other two conditions hold. Section 143.101 treats a Missouri domiciliary as a resident unless no permanent place of abode is kept in Missouri, a permanent place of abode is kept elsewhere, and no more than 30 days of the taxable year are spent in the state. The 183-day figure is the separate arrival-side test for someone who is not domiciled here.
A permanent place of abode maintained in Missouri fails the first element of the departure exception, and the exception is conjunctive — so resident status stays in place on the department's reading of §143.101 whatever the day count. What the record shows about the home, and when, carries the analysis.
It does not, for individuals, from tax year 2025 forward: 100% of capital gains reported for federal income tax purposes is subtracted from federal adjusted gross income on Form MO-A. The subtraction covers short-term and long-term gains. The residency date decides which realizations fall inside it.
For city-performed work, yes. The tax defined by §92.111 covers compensation earned by nonresidents of the city for work done or services performed in the city, so the split between city and non-city workdays is what matters after the move. Ending city residency ends the tax on earnings from elsewhere.
Form MO-1040 with Form MO-NRI, which states the residency dates and computes the Missouri income percentage. A part-year resident is treated as a nonresident but may compute tax as if a resident for the whole year, and may use Form MO-CR instead — one individual cannot claim both.
Vehicles are titled within 30 days of becoming a resident, and the driver license application requires proof of a Missouri residential address. Voter registration has to be postmarked by the fourth Wednesday before an election. The arrival year is filed on MO-1040 with MO-NRI stating the residency start date.
2026.1 Edition · Revised 2026-07-25 · DomusDay Research